616
FNCA52 TJSJ 071930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST SUN JUN 7 2026
DISCUSSION
A WEAK TROPICAL MOVED ACROSS THE REGION THIS MORNING. SURFACE
OBSERVATIONS REGISTERED MINIMUM RH VALUES ABOVE FIRE CRITICAL
FIRE THRESHOLDS. WINDS FROM THE SOUTHEAST AT 10 TO 18 MPH WITH
OCCASIONALLY HIGHER GUSTS. GIVEN THE EXPECTED CONDITIONS THE FIRE
DANGER THREAT REMAINS NONE TO LOW THE REST OF THE AFTERNOON.
MONITOR THE FORECAST THE COMING DAYS AS DRIER AIR ACCOMPANIED
WITH SAHARAN DUST PARTICLES WILL CONTINUE TO MOVE INTO THE
REGION, ALLOWING LOWER RH VALUES THROUGH AT LEAST MID WEEK.
PRZ014-080800-
SOUTHEAST COASTAL PLAINS-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE SHOWERS SHOWERS NONE
CHANCE PRECIP (%) 0 10 10 0
TEMP (24H TREND) 73 (-2) 90 (+2) 73 91
RH % (24H TREND) 89 (-1) 49 (-8) 88 45
WIND 20FT/EARLY(MPH) E 12 E 13 E 12 E 13
WIND 20FT/LATE(MPH) E 12 SE 17 NE 8 SE 19
MIXING HGT(FT-AGL/MSL) 4780 4630
TRANSPORT WND (MPH) E 17 E 12
VENT RATE (KT-FT) 71700 46300
DISPERSION 5 5
DSI 5 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-080800-
SOUTHERN HILLS-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 10 10 10
TEMP (24H TREND) 69 (-3) 88 (+5) 69 88
RH % (24H TREND) 99 (+3) 58 (-13) 96 55
WIND 20FT/EARLY(MPH) E 12 E 12 E 11 E 11
WIND 20FT/LATE(MPH) E 12 SE 12 E 9 SE 13
MIXING HGT(FT-AGL/MSL) 5490 5340
TRANSPORT WND (MPH) E 16 E 9
VENT RATE (KT-FT) 76860 42720
DISPERSION 5 5
DSI 4 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-080800-
NORTH COASTAL PLAINS-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 40 10 0
TEMP (24H TREND) 72 (-2) 91 (+2) 72 90
RH % (24H TREND) 99 (+3) 57 (-9) 96 55
WIND 20FT/EARLY(MPH) E 12 E 13 E 13 E 11
WIND 20FT/LATE(MPH) E 11 E 19 SE 9 E 16
MIXING HGT(FT-AGL/MSL) 5070 4550
TRANSPORT WND (MPH) E 14 E 12
VENT RATE (KT-FT) 60840 45500
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-080800-
NORTHERN HILLS-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 40 10 20
TEMP (24H TREND) 70 (-2) 90 (+3) 70 89
RH % (24H TREND) 99 (0) 58 (-10) 96 57
WIND 20FT/EARLY(MPH) SE 10 E 12 E 11 E 10
WIND 20FT/LATE(MPH) E 6 E 16 SE 6 NE 13
MIXING HGT(FT-AGL/MSL) 5960 5380
TRANSPORT WND (MPH) E 12 E 8
VENT RATE (KT-FT) 59600 37660
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-080800-
WEST COAST-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 50 10 40
TEMP (24H TREND) 73 (-1) 92 (+2) 73 92
RH % (24H TREND) 97 (+1) 58 (-9) 95 57
WIND 20FT/EARLY(MPH) E 13 E 13 E 13 E 11
WIND 20FT/LATE(MPH) E 12 SE 13 E 13 E 12
MIXING HGT(FT-AGL/MSL) 5050 4300
TRANSPORT WND (MPH) E 13 SE 8
VENT RATE (KT-FT) 55550 30100
DISPERSION 5 5
DSI 4 6 4 5
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-080800-
EASTERN INTERIOR-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 50 10 10
TEMP (24H TREND) 71 (-2) 89 (+3) 70 89
RH % (24H TREND) 100 (+3) 59 (-9) 97 56
WIND 20FT/EARLY(MPH) E 13 E 14 E 11 E 11
WIND 20FT/LATE(MPH) E 14 E 13 E 10 E 12
MIXING HGT(FT-AGL/MSL) 5660 6100
TRANSPORT WND (MPH) SE 16 E 9
VENT RATE (KT-FT) 79240 48800
DISPERSION 5 5
DSI 4 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-080800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 50 20 10
TEMP (24H TREND) 69 (-2) 84 (+4) 69 83
RH % (24H TREND) 100 (+1) 65 (-12) 98 63
WIND 20FT/EARLY(MPH) SE 11 E 12 E 10 E 10
WIND 20FT/LATE(MPH) E 11 E 12 E 9 E 10
MIXING HGT(FT-AGL/MSL) 4310 4240
TRANSPORT WND (MPH) SE 15 E 10
VENT RATE (KT-FT) 56030 38160
DISPERSION 5 5
DSI 6 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-080800-
CENTRAL MOUNTAIN RANGE-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 40 10 40
TEMP (24H TREND) 67 (-3) 87 (+5) 67 87
RH % (24H TREND) 99 (+2) 60 (-14) 97 58
WIND 20FT/EARLY(MPH) SE 8 E 9 SE 8 E 6
WIND 20FT/LATE(MPH) E 6 SE 10 E 8 E 9
MIXING HGT(FT-AGL/MSL) 6800 7100
TRANSPORT WND (MPH) E 9 NE 5
VENT RATE (KT-FT) 54400 28400
DISPERSION 5 4
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-080800-
CAYEY MOUNTAIN RANGE-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 40 20 10
TEMP (24H TREND) 70 (-1) 84 (+3) 69 84
RH % (24H TREND) 100 (0) 65 (-11) 99 62
WIND 20FT/EARLY(MPH) E 10 E 11 E 9 E 10
WIND 20FT/LATE(MPH) E 10 E 11 E 8 E 11
MIXING HGT(FT-AGL/MSL) 4720 4710
TRANSPORT WND (MPH) E 16 E 10
VENT RATE (KT-FT) 66080 42390
DISPERSION 5 5
DSI 4 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-080800-
VIEQUES-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 20 20
TEMP (24H TREND) 76 (-1) 88 (+1) 75 88
RH % (24H TREND) 90 (-1) 60 (-5) 88 59
WIND 20FT/EARLY(MPH) E 17 E 17 E 13 E 12
WIND 20FT/LATE(MPH) E 17 E 14 E 12 E 11
MIXING HGT(FT-AGL/MSL) 3450 3350
TRANSPORT WND (MPH) E 16 E 15
VENT RATE (KT-FT) 48300 43550
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-080800-
CULEBRA-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 20 10 20
TEMP (24H TREND) 77 (-1) 90 (+2) 76 89
RH % (24H TREND) 91 (+1) 59 (-7) 88 56
WIND 20FT/EARLY(MPH) E 17 E 18 E 13 E 12
WIND 20FT/LATE(MPH) E 18 E 14 E 11 E 11
MIXING HGT(FT-AGL/MSL) 3440 3210
TRANSPORT WND (MPH) E 17 E 16
VENT RATE (KT-FT) 51600 44940
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-080800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 0 20 10 10
TEMP (24H TREND) 74 (-2) 92 (+3) 74 92
RH % (24H TREND) 89 (-1) 48 (-10) 85 45
WIND 20FT/EARLY(MPH) E 18 E 18 E 17 E 16
WIND 20FT/LATE(MPH) E 17 SE 19 E 17 SE 17
MIXING HGT(FT-AGL/MSL) 4990 4490
TRANSPORT WND (MPH) E 20 E 13
VENT RATE (KT-FT) 84830 49390
DISPERSION 5 5
DSI 6 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-080800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 10 10
TEMP (24H TREND) 76 (-2) 86 (+1) 76 86
RH % (24H TREND) 91 (+2) 62 (-7) 87 60
WIND 20FT/EARLY(MPH) E 17 E 17 E 14 E 12
WIND 20FT/LATE(MPH) E 19 E 14 E 12 E 12
MIXING HGT(FT-AGL/MSL) 3360 3140
TRANSPORT WND (MPH) E 17 E 15
VENT RATE (KT-FT) 50400 40820
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-080800-
ST CROIX-
330 PM AST SUN JUN 7 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 20 10 10
TEMP (24H TREND) 76 (-2) 87 (+1) 76 87
RH % (24H TREND) 90 (-1) 62 (-6) 87 60
WIND 20FT/EARLY(MPH) E 16 E 16 E 13 E 13
WIND 20FT/LATE(MPH) E 17 E 14 E 13 E 11
MIXING HGT(FT-AGL/MSL) 4450 4490
TRANSPORT WND (MPH) E 20 E 15
VENT RATE (KT-FT) 75650 58370
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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